122121112110010 has 64 divisors (see below), whose sum is σ = 236828498245920. Its totient is φ = 45071558737920.

The previous prime is 122121112110001. The next prime is 122121112110013. The reversal of 122121112110010 is 10011211121221.

It can be written as a sum of positive squares in 16 ways, for example, as 9578696932809 + 112542415177201 = 3094947^2 + 10608601^2 .

It is not an unprimeable number, because it can be changed into a prime (122121112110013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3272865114 + ... + 3272902426.

Almost surely, 2^{122121112110010} is an apocalyptic number.

122121112110010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122121112110010 is a deficient number, since it is larger than the sum of its proper divisors (114707386135910).

122121112110010 is a wasteful number, since it uses less digits than its factorization.

122121112110010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47443.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 122121112110010 its reverse (10011211121221), we get a palindrome (132132323231231).

The spelling of 122121112110010 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, one hundred twelve million, one hundred ten thousand, ten".